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Technical Specifications
Chemical and Physical Specifications
| Test Items | Standard |
|---|---|
| Iron Content | ≥ 11% |
| pH (1% Aqueous Solution) | 2.0 — 4.0 |
| Water insoluble matter | ≤ 0.05% |
| Appearance | Yellow powder |
Physical Properties
| Projects | Description |
|---|---|
| Appearance | Yellow powder |
| Chemical Formula | C₁₄H₁₉N₃O₁₀FeNa |
| Molecular Weight | 468.2 |
| CAS No. | 12389-75-2 |
Product Introduction
Product Overview
Sodium Iron DTPA (DTPA-FeNa) is a highly effective organic chelated iron fertilizer product. It is a yellow powder with iron content ≥ 11%, CAS number 12389-75-2, molecular formula C₁₄H₁₉N₃O₁₀FeNa, and molecular weight 468.2. DTPA forms a stable chelate with iron ions, effectively improving the absorption and utilization of iron in crops, making it a high-quality organic chelated iron fertilizer raw material.
Key Advantages
- High Iron ContentIron content ≥11%, effectively supplements crop iron
- High StabilityDTPA chelated iron is stable under oxidizing conditions and not easily fixed by soil.
- Broad pH adaptabilitySuitable for a wide pH range of 2.0-11, remains effective in alkaline soil
- Easy to AbsorbChelated iron is directly absorbed by crop roots and leaves
- Good SolubilityWater insoluble ≤0.05%, easily soluble in water.
Application Guide
Recommended application method
Foliar Spray
- Recommended concentration: 800-1500 times dilution.
- Usage: When crops show iron deficiency symptoms, apply evenly as a foliar spray.
- Effect: Rapid iron supplementation, visible results in 3-5 days
Drip/Irrigation
- Recommended Dosage: 1-3 kg/mu
- Usage: Apply via drip irrigation or fertigation with water-soluble fertilizer
- Effect: Continuous iron supplementation, prevents iron-deficiency chlorosis
Water-Soluble Fertilizer Additive
- Recommended dosage: 0.5-2% (of total fertilizer)
- Usage: Used as a raw material in water-soluble iron fertilizers and foliar fertilizers.
- Effect: Enhances fertilizer efficacy, improves crop quality
Precautions:DTPA iron sodium is a solid powder, easily soluble in water. Avoid application during strong light and high temperature periods when foliar spraying; it is recommended to apply in the morning or evening. Specific usage and dosage can be adjusted based on crop type and soil conditions.
Applications
Agricultural nutrients
Used to prevent and treat crop iron deficiency chlorosis (yellowing disease), effectively supplementing iron and improving crop photosynthesis efficiency.
Fertilizer Production
Used as a chelated iron raw material for producing various iron-containing water-soluble fertilizers, foliar fertilizers, and irrigation fertilizers, it is an important ingredient in water-soluble fertilizer additives.
FAQ
Main differences between DTPA-FeNa and EDTA-FeNa:
- Chelating CapacityDTPA has 5 coordination atoms, EDTA has 4, DTPA-FeNa is more stable
- Applicable pH rangeDTPA is effective in the pH range of 2-11, while EDTA's chelating ability decreases at low pH.
- Oxidation StabilityDTPA is more stable under oxidizing conditions, suitable for alkaline soil and bleaching processes
- Iron ContentDTPA-FeNa iron content ≥11%, EDTA-FeNa iron content ≥13%
Main differences between DTPA-FeNa (chelated iron) and ferrous sulfate (inorganic iron):
- Absorption Utilization RateThe absorption rate of chelated iron is much higher than that of inorganic iron, especially in alkaline soil.
- StabilityChelated iron is not easily fixed in soil and remains effective across a wide pH range
- MixabilityChelated iron can be mixed with most water-soluble fertilizers without precipitation.
- SafetyChelated iron is safer for crops and less likely to cause leaf burn or other fertilizer damage.
Storage Requirements:
- Store in a dry, ventilated warehouse
- Avoid direct sunlight
- Stack lightly, handle with care, avoid package damage.
- Keep container sealed and dry
Shelf life: 24 months (sealed in original packaging).
Packaging Specifications:
- Standard Packaging25 kg/bag
- Custom packagingOther packaging specifications available upon request.
Please consult our sales team for minimum order quantity.
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